Computer Knowledge

Mobile Telecommunications Networks

2,298 Questions

Mobile telecommunications networks focus on cellular technologies including 5G architecture and GSM components. Key areas of study include network function virtualization, software defined networking, and beamforming. This topic is crucial for technical exams testing computer and networking awareness.

5G architecture componentsNetwork function virtualizationMassive MIMO technologyGSM network registersBeamforming and CSI

Mobile Telecommunications Networks Questions

Multiple choice technology web technology

Which of the following is/are example of Mobile widgets?

  1. Weather forecast

  2. E-mail notifications

  3. Marketing Blogs

  4. Information feeds

  5. All of above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Mobile widgets are small, single-purpose applications that run on mobile devices. Weather forecast widgets, email notification widgets, marketing blog widgets, and information feed widgets are all valid examples of mobile widgets. Since all options (A through D) are correct examples of mobile widgets, 'All of above' is the right choice.

Multiple choice

What is the syntax of drawLine() method of Canvas?

  1. g.drawLine(0, 4, 5, 16);

  2. canvas.drawLine(56, 0, 56, 100, paint);

  3. drawLine(4, 5, 6, 7);

  4. drawLines(x[], y[], count);

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

canvas.drawLine(56, 0, 56, 100, paint); is valid in android.

Multiple choice

Android by default supports

  1. SQLDatabase

  2. SQLite database

  3. access database

  4. android database
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Android's built-in database support is SQLite, a lightweight relational database engine. Developers interact with it through Android's SQLite API and SQLiteDatabase class, not through SQLDatabase, Access, or any custom 'android database'.

Multiple choice

Shared preferences store data as

  1. hash map

  2. key–value pair

  3. built in database

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

SharedPreferences stores data as key-value pairs internally. Under the hood, these are saved as XML files in the app's private directory, but the abstraction model is a simple key-value map, not a hash map (the internal implementation detail) or a built-in database.

Multiple choice

_________ class is used to implement SQLiteDatabase in android

  1. SQLiteHelper

  2. SQLiteDatabase

  3. SQLiteOpenHelper

  4. SQLiteConnector
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SQLiteOpenHelper is the helper class that manages database creation, version management, and upgrades. It provides onCreate() and onUpgrade() callback methods. The actual database instance is SQLiteDatabase, but SQLiteOpenHelper is the class you extend to implement database management.

Multiple choice

SQLite is ________ type of database.

  1. network

  2. object–oriented

  3. relational

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SQLite is a relational database engine. It uses SQL (Structured Query Language) for queries, supports tables with defined schemas, relationships between tables through foreign keys, and standard relational database concepts like indexes and views. It is not a network or object-oriented database.

Multiple choice

SQLite database needs _________ connection.

  1. JDBC

  2. ODBC

  3. network

  4. no

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

SQLite in Android does NOT use JDBC, ODBC, or any network connection. Android provides its own SQLite API through SQLiteDatabase and SQLiteOpenHelper classes that directly interact with the database file. This is different from how you'd access SQLite in a Java desktop application using JDBC.

Multiple choice

SQLite is written or developed using

  1. Android

  2. Java

  3. ANSI-C

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SQLite is a C-language library, written in ANSI-C for maximum portability across platforms. While Android uses SQLite extensively, SQLite itself was not written in Android or Java - it's a standalone C library that Android incorporates.

Multiple choice

New Intent(Intent.ACTION_VIEW,Uri); is an _____

  1. Explicit Intent

  2. Implicit Intent

  3. Special Intent

  4. None of above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Using Intent.ACTION_VIEW with a URI creates an Implicit Intent because you're specifying an action and data, but not the exact component to handle it. Android resolves the component at runtime based on the registered intent filters. Explicit intents specify the component class directly (new Intent(context, MyClass.class)).

Multiple choice

________ are used to share your data with other applications.

  1. Service

  2. Intents

  3. Content Provider

  4. Activity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Content Providers are the Android component designed specifically for sharing structured data between applications. Services run background operations, Intents enable messaging between components, and Activities display UI - none of these are primarily for data sharing across apps.